<template>
  <div class="fmbox">
    <my-scroll>
      <div class="fm_outter">
        <div class="fm_container">
          <div class="banner">
            <el-carousel
              :interval="4000"
              type="card"
              :height="bannerHeight + 'px'"
            >
              <el-carousel-item
                v-for="(item, index) in banners"
                :key="index"
                style="textAlign:center"
              >
                <img :src="item.imageUrl" />
              </el-carousel-item>
            </el-carousel>
          </div>
          <div class="banner2">
            <el-carousel :interval="5000" height=" 150px">
              <el-carousel-item
                v-for="(item, index) in banners"
                :key="index"
                style="textAlign:center"
              >
                <img :src="item.imageUrl" />
              </el-carousel-item>
            </el-carousel>
          </div>
          <div class="recommended">
            <h3>推荐歌单</h3>
            <div class="recombox">
              <div
                class="recom-item"
                v-for="(item, index) in recommends"
                :key="index"
              >
                <div class="imgbox" @click="golist(item.id)">
                  <div class="dsc">{{ item.copywriter }}</div>
                  <img :src="item.picUrl + '?param=200y200'" alt />
                  <span>
                    <i class="iconfont icon-triangle-down"></i>
                  </span>
                </div>
                <p>{{ item.name }}</p>
              </div>
            </div>
          </div>
          <div class="single">
            <h3>最新单曲</h3>
            <div class="singlebox">
              <div
                class="single-item"
                v-for="(item, index) in singles"
                :key="index"
                @click="onPaly(item)"
              >
                <div class="single-left">
                  <img :src="item.picUrl + '?param=200y200'" alt />
                  <div class="iconbox">
                    <span class="iconfont icon-triangle-down"></span>
                  </div>
                </div>
                <div class="single-right">
                  <p>{{ item.name }}</p>
                  <span>{{ item.song.artists[0].name }}</span>
                </div>
              </div>
            </div>
          </div>
          <div class="mv">
            <h3>推荐MV</h3>
            <div class="mvbox">
              <div
                class="mv-item"
                v-for="(item, index) in mvs"
                :key="index"
                @click="toMv(item.id)"
              >
                <div class="mv-img">
                  <img :src="item.picUrl" alt />
                  <div class="iconbox">
                    <span class="iconfont icon-triangle-down"> </span>
                  </div>
                  <div class="views">
                    <span class="iconfont icon-play"></span>
                    <span>{{ item.playCount }}</span>
                  </div>
                </div>
                <p>{{ item.name }}</p>
                <span>{{ item.artists[0].name }}</span>
              </div>
            </div>
          </div>
        </div>
      </div>
    </my-scroll>
  </div>
</template>
<script>
import {
  GetBanner,
  GetRecommend,
  GetSingle,
  GetMv,
} from "../../../../api/music"
export default {
  name: "findmusic",
  data() {
    return {
      // 图片父容器高度
      bannerHeight: 1000,
      // 浏览器宽度
      screenWidth: 0,
      loading: true,
      banners: [],
      recommends: [],
      singles: [],
      mvs: [],
    }
  },
  created() {
    this.getbanner()
    this.getrecommend()
    this.getsingle()
    this.getmv()
  },
  mounted() {
    // 首次加载时,需要调用一次
    this.screenWidth = window.innerWidth
    this.setSize()
    // 窗口大小发生改变时
    window.addEventListener("resize", () => {
      // 变化后需要做的事
      this.screenWidth = window.innerWidth
      this.setSize()
    })
  },
  methods: {
    // 跳转到mv详情页
    toMv(id) {
      this.$router.push(`/musichome/videoinfo?id=${id}`)
    },
    // 跳转到歌单详情页
    golist(id) {
      this.$router.push(`/musichome/listinfo?id=${id}`)
    },
    // 获取banner
    async getbanner() {
      const result = await GetBanner()
      this.banners = Object.freeze(result.banners)
    },
    // 获取推荐歌单
    async getrecommend() {
      const result = await GetRecommend({
        limit: 10,
      })
      this.recommends = Object.freeze(result.result)
    },
    // 获取单曲
    async getsingle() {
      const result = await GetSingle()
      this.singles = Object.freeze(result.result)
    },
    // 获取mv
    async getmv() {
      const result = await GetMv()
      this.mvs = Object.freeze(result.result)
    },
    // 点击播放
    onPaly(item) {
      this.$store.dispatch("getSong", { id: item.id, autoPlay: 1 })
    },
    setSize: function() {
      // 通过浏览器宽度(图片宽度)计算高度
      if (this.screenWidth > 1200) {
        this.bannerHeight = (500 / 1920) * 0.6 * this.screenWidth
      }
    },
  },
}
</script>
<style lang="scss" scoped>
@import "../../../../../static/scss/common.scss";

.fmbox {
  position: relative;
  width: calc(100% - 0.5rem);
  height: calc(100% - 1rem);
  margin: 0.5rem 0.25rem;
}

.banner {
  display: none;
}
.banner2 {
  display: block;
  width: calc(100% - 1.25rem);
  margin: 0 0.625rem;
  img {
    width: 100%;
    height: inherit;
  }
}
.el-carousel__item {
  border-radius: 10px !important;
  overflow: hidden;
}
/deep/ .el-carousel__indicators--horizontal {
  display: none !important;
}
.recommended {
  margin: 0rem 0.25rem;
}
.recombox {
  display: flex;
  flex-wrap: wrap;
}
.recom-item {
  box-sizing: border-box;
  width: 50%;
  padding: 0px 10px;
  margin-top: 20px;
  .imgbox {
    width: 100%;
    position: relative;
    overflow: hidden;
    border-radius: 0.3125rem;
    img {
      width: 100%;
      border-radius: 0.3125rem;
    }
    .dsc {
      position: absolute;
      width: 100%;
      background-color: rgba(0, 0, 0, 0.5);
      top: 0px;
      left: 0px;
      color: rgb(255, 255, 255);
      font-size: 0.875rem;
      line-height: 1.5625rem;
      padding: 0rem 0.125rem;
      box-sizing: border-box;
      transition: 0.5s;
      display: -webkit-box;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 1;
      overflow: hidden;
    }
    span {
      position: absolute;
      right: 10px;
      bottom: 10px;
      width: 35px;
      height: 35px;
      background: rgba(247, 247, 247, 0.5);
      display: flex;
      justify-content: center;
      align-items: center;
      border-radius: 50%;
      opacity: 1;
    }
    i {
      font-style: normal;
      color: $primary;
      padding-left: 2px;
    }
  }
  p {
    margin: 0px;
    height: 30px;
    line-height: 30px;
    font-size: 13px;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}
.single {
  margin: 0rem 0.5rem;
  .singlebox {
    .single-item {
      padding: 0rem 0.625rem;
      height: 6.25rem;
      margin-bottom: 1.25rem;
      width: 100%;
      transition: 0.5s;
      display: flex;
      .single-left {
        width: 6.25rem;
        height: 6.25rem;
        overflow: hidden;
        position: relative;
        img {
          width: 6.25rem;
          height: 6.25rem;
        }
        .iconbox {
          position: absolute;
          top: 0px;
          left: 0px;
          height: 100%;
          width: 100%;
          background: rgba(0, 0, 0, 0.5);
          display: flex;
          justify-content: center;
          align-items: center;
          opacity: 0;
          transition: 0.5s;
          span {
            color: $primary;
            width: 35px;
            height: 35px;
            background: rgba(247, 247, 247, 0.5);
            display: flex;
            justify-content: center;
            align-items: center;
            border-radius: 50%;
          }
          span:before {
            transform: translateX(1px);
          }
        }
      }
      .single-right {
        flex: auto;
        margin-left: 10px;
        p {
          word-wrap: break-word;
          word-break: normal;
        }
        span {
          word-wrap: break-word;
          word-break: normal;
          margin-top: 15px;
          display: inline-block;
          color: rgb(128, 125, 124);
          font-size: 13px;
        }
      }
    }
  }
}
.mv {
  margin: 0rem 0.25rem;
  .mvbox {
    .mv-item {
      width: 100%;
      box-sizing: border-box;
      padding: 0.5rem;
      margin-bottom: 30px;
      .mv-img {
        width: 100%;
        position: relative;
        img {
          width: 350px;
        }
        .iconbox {
          position: absolute;
          top: 0px;
          left: 0px;
          height: 100%;
          width: 100%;
          background: rgba(0, 0, 0, 0.5);
          display: flex;
          justify-content: center;
          align-items: center;
          opacity: 0;
          transition: 0.5s;
          span {
            color: $primary;
            width: 60px;
            height: 60px;
            background: rgba(247, 247, 247, 0.5);
            display: flex;
            justify-content: center;
            align-items: center;
            border-radius: 50%;
          }
          span:before {
            font-size: 30px;
            transform: translateX(2px);
          }
        }
        .views {
          position: absolute;
          top: 10px;
          right: 10px;
          span {
            margin-left: 10px;
            color: white;
          }
        }
      }
      .mv-img:hover {
        cursor: pointer;
      }
      .mv-img:hover .iconbox {
        opacity: 1;
      }
    }
    p {
      width: 100%;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      margin: 10px 0px;
    }
    span {
      font-size: 14px;
      color: rgb(143, 140, 140);
    }
  }
}
</style>
